* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

/* 头部样式 */
.header {
    background-color: #87CEEB;
    padding: 25px 0;
    height: 80px;
    display: flex;
    align-items: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    height: 100%;
}

.logo {
    font-size: 36px;
    font-weight: bold;
    color: #fff;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.user-info {
    color: #fff;
    margin-left: auto;
    display: flex;
    align-items: center;
    font-size: 18px;
}

.greeting {
    color: #fff;
    margin-right: 5px;
    font-size: 18px;
}

.login-link {
    color: #ff0000;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
}

.login-link:hover {
    text-decoration: underline;
    color: #ff3333;
}

/* 登录状态的样式 */
.logged-in .nickname {
    color: #fff;
    text-decoration: none;
    margin-right: 10px;
}

.logged-in .logout {
    color: #fff;
    text-decoration: none;
}

.logged-in a:hover {
    text-decoration: underline;
} 